A study of Flame Arrestor's Spring Structural Analysis

폭연방지기 스프링의 구조해석에 관한 연구

  • Pham, Minh-Ngoc (Graduate School of Mokpo National Maritime University) ;
  • Kim, Bu-Gi (Division of Marine Mechatronics, Mokpo National Maritime University) ;
  • Kim, Jun-Ho (Division of Marine Mechatronics, Mokpo National Maritime University) ;
  • Choi, Min-Seon (Division of Marine Engineering System, Mokpo National Maritime University) ;
  • Yang, Chang-Jo (Division of Marine Engineering System, Mokpo National Maritime University)
  • 팜민억 (목포해양대학교 대학원) ;
  • 김부기 (목포해양대학교 해양메카트로닉스학부) ;
  • 김준호 (목포해양대학교 해양메카트로닉스학부) ;
  • 최민선 (목포해양대학교 기관시스템공학부) ;
  • 양창조 (목포해양대학교 기관시스템공학부)
  • Published : 2017.11.23

Abstract

Flame arrestor as end of line flame arrester for endurance burning prevents a light-back at deflagration and stabilized burning (during and after endurance burning) of potentially explosive vapor-air and gas-air mixtures at the end of vent pipes. In a flame arrestor, spring is an important part. The spring load as well as the spring's elasticity determine when the hood is opened. In addition, the spring have to work in high temperature condition due to gas burning. Therefore, it is necessary to analyze mechanical load and elasticity of spring when gas is burned. Based on the dynamic calculation on working process of a specific flame arrestor, analysis of spring is taken. A three dimensional model for spring burned in flame arrestor by using CFD simulation. Results of the CFD analysis are input in FEM simulation to analyze structure of the spring. The simulation results can predict and estimate the spring's load and elasticity at variation of the spring's deflection. Moreover, the obtained result can provide makers with references to optimize design of spring as well as flame arrestor.

Acknowledgement

Supported by : Korea Institute for Advanced of Technology (KIAT)